This is a upgrade to add to any humidor. Humidifier Crystals will make keeping your humidor at 70% humidity easy and hassle free.
You can use any humidifier just take out the standard florial sponge and add the cyrstals.
The Crystal Humidification System is designed to maintain a 70% humidity level with very little maintenance. Simply fill the Crystal Humidifier 2/3 of the way with distilled water and 1/3 PG Solution to prevent mold. Please check your Crystal Humidification System. When you notice the Crystal Humidifier drying up, just add more distilled water and PG Solution.